Use the information as below $($collected from class$)$ to determine the parameter below for the given rectangular $)$ and trapezoidal $,$ Slope $\frac{1}{2})$:

Area

Wetted perimeter

Hydraulic radius

Discharge

Velocity

Based on the calculations above comment on the discharge for both Rectangular and trapezoidal.

Explain the following terms: Rapidly Varied Flow and Gradually Varied Flow.

In what situations are weirs useful and what are the benefits of using these structures?

Why is open channel flow important in engineering?

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$\backslash$table$[[$Data collected from class$],[,$Trapezoidal weir,Rectangular weir$],[$L$,235mm,237mm$